perf trace: Remove thread_trace->exit_time

Not used at all, we need just the entry_time to calculate the syscall
duration.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-js6r09zdwlzecvaei7t4l3vd@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 0bae454..c72a92c 100644 (file)
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -843,7 +843,6 @@ static size_t fprintf_duration(unsigned long t, FILE *fp)
  */
 struct thread_trace {
        u64               entry_time;
-       u64               exit_time;
        bool              entry_pending;
        unsigned long     nr_events;
        unsigned long     pfmaj, pfmin;
@@ -1571,8 +1570,6 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
                ++trace->stats.vfs_getname;
        }
 
-       ttrace->exit_time = sample->time;
-
        if (ttrace->entry_time) {
                duration = sample->time - ttrace->entry_time;
                if (trace__filter_duration(trace, duration))